Spanner or wrench.



W. WRIGHT.

SPANNER 0R WRENCH. APPL1CAT10N 11115111111111811913.

1,154,154. Patented sept. 21, 1915.

cDLuMmA PLANoaRAPH C0.. WASHINGTON. D. c.

" Vr nnie- WALTER WRIGHT, 0F STOKE PARK, COVENTRY, ENGLAND, ASSIGNOR TO THE DUNLOP RUBBER COMPANY, LIMITED, OF ASTON CROSS, NEAR BIRMINGHAM, ENGLAND.

SPANNER OR WRENCH.

To all 'whom 'it may concern Be ,it known that I, WALTER WRiGHT, a subject of the King of Great Britain, residing at Dechmont, Stoke Park, Coventry, in the county of VVarWick, England, have invented certain new and useful Improvements in or Relating to Spanners or Wrenches, of which the following is a speciication.

This invention relates to spanners or wrenches and has for its chief object to devise a spanner which is particularly suitable for effecting the locking and unlocking of a detachable vehicle wheel of the kind described in the specification of my concurrent application for patent Serial No.l 656290.

According to this invention means are provided for locking the spanner on the nut or rotary member which retains the'spoke carrying hub on the inner hub, and a device is also provided which engages with and unlocks the locking member that normally occupies a position in which it prevents rotation of the said nut. The said means for locking the spanner on the nut, may comprise sliding bolts or pins, preferably spring controlled, which engage with or fit into a groove or depression on the nut when the spanner is properly fitted thereon, andthe device for engaging with and unlocking the said locking member may comprise a thrusting member preferably rotatable and provided with ball bearings for facilitating the actuation thereof.

In order that the said invention may be clearly understood and readily carried into effect, I will describe the same more fully with reference to the accompanying drawings in which Figures l and 2 are respectively a plan and a side elevation of the improvedA spanner. F ig. 3 is a sectional elevation showing the spanner locked on the retaining nut forming part of the detachable vehicle wheel described in the specification of my aforesaid concurrent application.

a is the spanner which in the example shown is provided with a bridge piece a having slots for the reception of the sliding bolts or tongues b Z; which are arranged opposite each other. 'Ihe said bolts are secured to pins b the ends of which are slidably mounted in projections or lugs a2 of the spanner, and a spring b2 surrounding the Specification of Letters Patent.

Patented Sept. 21, 1915.

pin is interposed between the bolt or tongue and the lug a2. rI`he middle of the bridge portion a is formedwith a screw threaded hole which receives a hollow screw threaded sleeve c provided with a handle or actuating arm c. A spindle d carrying at its inner vend an annular member CZ is centrally arranged in the sleeve c and is secured in that position by a nut Z2 screwed onto a threaded part of the spindle d. The lower end of the sleeve c and the upper face of the annular member Z are shaped to form a ball race for the anti-friction balls d3. In the example shown, the annular member CZ is made cup-shaped so that 'only the peripheral or rim portion thereof engages with the locking member mounted in the inner hub of the vehicle wheel.

In operation when it is desired to remove the detachable wheel the spanner is placed on thev retaining nut e carried by the outer or spoke carrying hub f and the spring controlled bolts b are caused to project into the groove surrounding thenut thus locking the spanner against longitudinal movement on the nut. The actuating handle o is then angularly displaced to rotate the sleeve which is thus forced toward the toothed locking'member g that engages with teeth in the nut e. rIhe cup-shaped member is thereby forced into engagement with the locking member' g and pushes the same against the compression springs 7i and retains it in that position. The nut is now free to be rotated by means of the spanner and the detachable wheel is thereby removed.

Vl/Vhen replacing the ,detachable wheel the spanner is again fitted on the nut as aforesaid and the cup shaped member is kept in the extended position to prevent the locking member g from engaging with the nut, and when the latter is screwed on to the inner hub sufliciently, the locking member is allowed to engage with the nut by operating the handle c in the opposite direction from its previous movement.

The cup-shaped formation of the member al enables it to engage with the locking member without fouling or coming into contact with the stationary stem z' which limits the outward movement of the locking member r/ and enables a centrally arranged grease plug z" to be provided. The member al may of course be otherwise shaped to avoid contact Divided and uns application filed July is,

with the stem z when engaging with the locking member'.

What l claim and desire to secure by Letters Patent of the United States is l. For use with a detachable vehicle wheel in which a nut for retaining the outer or detachable hub on the inner hub is normally prevented from rotating by a locking member engaging therewith, a tool or spannerv ber .engaging therewith, a tool or spanner in combinationr with flat races which engage with flat races on the nut, spring actuated locking devices on said spanner which prevent longitudinal movement or the spanner on the nut, and a movable cup-shaped member on said nut todisengage said locking member from the nut.

3.1901' use with a detachable Ywheel in which a nut for retaining the outer hub on they inner hub is normally prevented from rotating by a locking member engaging therewith, a spanner comprising in combination means wherebythe spanner can be locked on the nut, a rotary sleeve carried by said spanner, a member connected to the sleeve and adapted to disengage said locking member from the nut and antifriction balls interposed between said sleeve and the member connected thereto. Y

1. For use with a detachable vehicle wheel in which a nut for retaining the outer hub on an inner hub is normally prevented from rotating by a locking member engaging therewith, a spanner comprising in combi!V nation, means whereby the spanner can be locked on the nut, a rotary externally screw threaded sleeve, a bridge piece on said spanner, provided with a screw threaded hole to receive said sleeve, a spindle mounted in and Copies of this patent may be obtained for ve cents connected at one'y end to said sleeve, a cup shaped member secured to the other end of said spindle andv antifriction balls interposed between said sleeves and the cupsliaped member.

5. For use with a detachable vehicle wheel in which the outer hub is retained in position by a nut that is normally prevented from rotating by a locking member engaging therewith, a spanner comprising spring controlled sliding bolts adapted to engage a groove in said nut, a rotary externally screw threaded sleeve, abridge piece on said spanner provided with a screw threaded hole to receive said sleeve, a spindle mounted in and connected at one end to said sleeve, acupshaped member carried at the other end of said spindle and antifriction balls interposed between said sleeve and Vthejcup-V shaped member. y. I Y

6. For use with va detachable wheel in which a nut for retaining the outer hub on the inner hub is normallyprevented from rotating by a locking member engaging therewith, a spanner comprising in combination means whereby the spanner l can be locked on the nut, a rotary sleevev carried by said spanner, a member having .one'or more projections adapted to engage with said locking member and antifriction balls interposed'between said sleeve' and the member connected thereto.

7. For use with a detachable vehicle wheel in which a nut for retainiug'the outer` hub. on the inner hub is normally prevented from rotating by a locking member,k engaging therewith, a spanner comprising in combination fiat faces onthesaid spanner which engage with similar faces on the saidV nut, spring controlled locking devices, said locking devices beingdianietrically opposite one another, and a movable member having one or more projections adapted to disenga'ge said locking member from the nut.

In testimony whereotl affix my signature in presence of two witnesses.

VALTER VRIGHT.

Witnesses:

NORMAN SHARP, JOI-1N VHrrELAw.

each, by addressing the Gommissioner of Patents,

Washington, D. 0'. 

